Lock rail extrusion for a window



FIG. 1 is a front elevational view of the lock rail extrusion for a window showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is an end elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a rear elevational view thereof; and,

FIG. 6 is a perspective view thereof. 

The ornamental design for a lock rail extrusion for a window, as shown and described. 